OLEFIN PRODUCTION VIA OXYGENATE CONVERSION

摘要

An improved processing for the production of light olefins via oxygenate conversion processing is provided. Synthesis gas conversion (22) such as to produce an effluent (24) including at least methanol can be integrated with oxygenate conversion processing (40) such as to produce an oxygenate conversion reactor effluent (42) including at least light olefins and dimethyl ether. At least a portion of the oxygenate conversion reactor effluent (42) can be contacted with such produced methanol (35) to effect recovery of dimethyl ether from the oxygenate conversion reactor effluent (42).